Hot-air furnace



W. S. MARTIN May 24, 1927. 1; 3o,024

HOT AIR FURNACE Filed Jan. 17. 1927 2 Sheets-Sheet 1 INVENTOR 54mm 6. Ww-am BY m ATTORNEY May 24 1927.

W. S. MARTIN m AIR FURNACE Filed Jan. 1'7. 1927 2 Sheets-Sheet 2 Ii? ig;

INVENTOR 54m 6 with,

ATTORNEY I Patented May 24, 1927.

UNITED TA WILLIAM S. MARTIN, F ROCHESTER, (YORK.

rionnm FURNACE.

.Appli cationffiled January 17,1327. serial No. 161,495.

the passage 1 of heat from :all of the outlet pipes. Another objectof :the invention is to provide the top of the furnace with a plurality of adjustable. partitions .mounted .in a novel manner and adapted to vary the .amount-of heat supplied by the furna ceto the diiierent outlet pipes. wAnother object .oiithe invention is to provide a means-operable from'the exterior of the furnace ina simple and novel manner for the purpose of providing individual compartments .of desirable sizes from which the pipes lead.

To these and other ends, the invention consists of certain parts and combinations of parts, .all of which will be hereinafter described; the :novel features being pointed out in the appended claims.

In the drawings; Fig. :1. is a plan view-of a furnace constructed in accordance with this invention. Fig. .2 shows the upper portion of the furnace in fragmentary section. V

i Fig. 3 is a bottom View of the topsection .of the. furnace; L H Y Fig. A: is anenlargod fragmentary section showing the manner in which the parztitions :are supported and adjusted.

section. on: the line 5 5, Fig. i l,

sign is a 6 is a section on theline- 6-6, :Fig; 4. -,In the illustrated embodiment of the mzthis instance surmounted by the top section zha-vingxa' flange 3 fitting IIiI lIBCEISIIIg 1 and having asidewall 2 which tapers upwardly I to atop plate 4. lVithin the top section is an inverted cone shaped -member 5 Wl1lCl] has its'edgesseamed to the topplatel l and :the side Wall 2. This top section provides, part of the heating drum from whichtheoutlet fines 6 lead. j

, lnrthej hot-air i'urnaces rnow in general US,SOIT16 of the outlet pipes .owingtodraft tor other conditions carry off a greater zamount o'f heat from the heating: drum than mothers, making the] functioi'iing .of-such other fines difficult. justable partitions are provided 111 thefheatring drum wwhichcwill divide the drum unto outlet flu es.

Y Wi'thin the heating ".ing member 7.

In this ginyention, iada plurality of chambers preferably corresponding in number to the number of fines leading from the drum,v with each chamber common to one of the lines, and the adj ustmerit of'the partitions permitting an in- ;c'reas'e olr decrease in vthe size of the chamber to meetthfeconditions required. It; has been suggested prior to this invention to divide the heating ,druininto chambers by partitions which are adjustable'fbut far as. I am aware it has not been possible "to i move these partitions in a complete circle. Furthermore it has not been possiblejto ob .tain the adjustment of the partitions from the exterior oi" the furnace {WltllOtltBt the same time providing openings through Which theheated air may escapeor dust may enter the heating drum to be carried therefrom into ,the

In this embodiment of vthe invention, there isrprovided a central tubular bearing member 7 which is supported at the center of and depends from the .top section, being externally threaded at '8 adjacent one end :for engagement by: nuts QjtWo ofv which clalnpthe tubular bearing member 7 to the top plate l while theother twoiclamp said bearing member .to the cone shaped Wall 5.

i'ormed nn inwardly extending annular flange 10 which is concentric'withthe bear- Mounted .to turn on [the.bearingnielnber .are anumber of partitions 11, the number iber offiues or'outlets 6. Each of these parititions 11 has along its toprdge a flexible strip12andalong its vertical edge aflexible. strip 153, these llexible strips being made in this instanceot' asbestos and forming a tight j ointbetweeuthe partitions and the Walls of the top section. Each partition is .mounted 'to' swing-on the bearing member 7 r and to;

building by way ofum i drum is preferably,

,90 --being sufficient to provide chambers between .the1n corresponding in number ,to the numzvention '1 indicates :the furnace (.flSlng, ll1' this end'each has a bearingzring' 14detachably-bolted at 15 thereto saidring' snrroundv hing-the tubular bearingu'nember 7' and lying in an annular grro'ove..16ufor1ned in the surface of saidtubular bearingmember. Each bearing ring 14 supports apartitionat its inner edge .While the inwardly, projecting flange 10 supports the partition, atgits outer edge. It .is apparent :that each'parti't-ion may be swungin a complete circle'andif'de portion 26 shaped member erating means, the means in this instance Comprises a rod 17 having a laterally turned screw threaded end 18 engaged by a sleeve 19 with internal right and left threads engaging also a screw threaded portion 20 on a rod 21 which is employed for reinforcing the lower edge of a partition 11. The rod 17 extends upwardly through the hollow bearing member 7 and has an arm 2:2 extending outwardly therefrom in the plane of the partition 11 to which the arm is secured, this arm operating over the top plate at. The opening in the tubular bearing member 7 is of sufficient size to hold all of the rods 17.

\Vith the end in View of preventing dust from passing into the furnace or hot air passing from the furnace by way of the tubular member 7, a novel closing means is employed for closing the, upper end of th s tubular member. This closing means in this instance embodies a cup shaped member 23 secured to the top plate l between two of the nuts 9 and adapted to contain sand or other sealingmedium. An inverted cup I 24 of smaller diameter than the cup shaped member 23 is received within the latter with its edges depending into "the sand thus sealing the end of the tubular bearing member 7. So that the rod or'operating members 22 will not interfere with the sealing of the cup'shaped member 24: ,in the sand 25, each rod has a deflected which is bent dowi'iwardly below the edge of the cup shaped member 2a and then upwardly and outwardly-over the edge of the cup shaped member 23. The sand does not prevent the movement of the rods 23 to adjust. the partitions 11, but if the adjustment of the partition materially disturbs the/sand or the closure 24 then the rearrangement of the sand and the proper positioning of the closure 24 may be readily effected. D

It is apparent, with this invention, it is possible to adjust from the outside of the furnace the sizes of the chambers formed between the partitions to meet the desired re- ,quirements as each partition has'an operating'portion extending to the exterior of the furnace. This operating port-ion connects with a'partition in such a manner that'the entrance of dust to the heating drum or the escape of heated air from'the heating drum is prevented." All of the operating members connect with the partitions through a. tubular bearing member at the center of the furnace. The tubular bearing member permits each partition to be swung in a complete circle so that in any position of adjustment,

a partition can act as a wall of a chamber. A novel means is employed for supporting the partitions at their outer edges so that the sagging of the outer edge is prevented.

What I claim as my invention and desire to secure by Letters Patent is:

1. In a furnace, an inwardly projecting flange near the top of the furnace, a bearing depending from the top and formed with annular grooves, a plurality of partitions having outer edges resting on the inwardly projecting flange, and bearing rings detachably bolted to said partition and lying in said grooves.

2. A furnace comprising a top section, a tubular bearing depending therefrom, partitions mounted to swing on said tubular bearing, and operating means for the partitions extending through said tubular bearing to the top of the furnace.

3. A furnace comprising a top section, a tubular bearing depending therefrom, partitions mounted to swing on the tubular hearing, and individual operating members for the partitions extending through the tubular bearing to the top of the furnace and radially outward in the planes of the partitions.

l. A furnace com irising a top section, a tubular bearing depending therefrom, partitions mounted to swing on the tubular bearing, operating means for the partition extending through said tubular bearing, and means for closing the upper end of the tubular bearing to prevent the passage of hot air therefrom or theentrance of dust therethrough.

A furnace comprising a top section, a tnbular bearing depending therefrom. partitions mounted to swing on the tubular bearing, operating means for the partition exlendiug'through said tubular hearing, and means for closing the upper end of the tubular bearing to prevent the passage of hot air therefrom or the entrance of dust therethrough, saidmeans eon'iprising a cup shaped member. suitable sealing medium for sealing the said cup shaped member about the end of the tubular bearing. and an inverted cup shaped member of smaller size having its margin in the sealing medium.

6. A furnace comprising a top section, a

tubular member depending therefrom. partitions mounted to swing on said tubular hearing, and operating members detachablv connected to said partition and extending through said tubular bearing to the exterior of the furnace.

7. A furnace comprising a top section, a tubular-member depending therefrom, partitions mounted to swing on said tubular bearpartitions extending through the tubular ing, a cup shaped member surrounding the Jnember and outwardly over the top of the upper end of the tubular member, a sealing furnace, said operating members having dem medium in said cup shapedmember an inflected portions lying in the sealing medium verted cup shaped member of smaller diambelow the edge of the second mentioned cup eter having its margin embedded in the sealshaped member.

ing inedium and operating members for the WILLIAM S} MARTIN. 

